package com.inxedu.os.common.util;

import java.beans.PropertyEditorSupport;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.springframework.util.StringUtils;

public class DateEditor extends PropertyEditorSupport
{
    private static final DateFormat DATEFORMAT = new SimpleDateFormat("yyyy-MM-dd");
    private static final DateFormat TIMEFORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    private DateFormat dateFormat;
    private boolean allowEmpty = true;

    public DateEditor() {
    }

    public DateEditor(DateFormat dateFormat) {
        this.dateFormat = dateFormat;
    }

    public DateEditor(DateFormat dateFormat, boolean allowEmpty) {
        this.dateFormat = dateFormat;
        this.allowEmpty = allowEmpty;
    }

    public void setAsText(String text)
            throws IllegalArgumentException
    {
        if ((this.allowEmpty) && (!StringUtils.hasText(text)))
        {
            setValue(null);
        }
        else try {
            if (this.dateFormat != null) {
                setValue(this.dateFormat.parse(text));
            }
            else if (text.contains(":"))
                setValue(TIMEFORMAT.parse(text));
            else
                setValue(DATEFORMAT.parse(text));
        }
        catch (ParseException ex) {
            throw new IllegalArgumentException("Could not parse date: " + ex.getMessage(), ex);
        }
    }

    public String getAsText()
    {
        Date value = (Date)getValue();
        DateFormat dateFormat = this.dateFormat;
        if (dateFormat == null)
            dateFormat = TIMEFORMAT;
        return value != null ? dateFormat.format(value) : "";
    }
}